Relays are used to separate two different voltage levels. A PLC could be used to regulate the functioning of a 2,300V or 4,160V medium-voltage motor. While the PLC controls the relay, it is used to energise the starter, which then switches the motor voltage.
Programmable relays combine the advantages of a PLC with a lower level of complexity and expense. In instances where fewer I/O points are required, programmable relays are employed. Smart relays are capable of performing a wide range of activities, including counting, timing, and real-time clock functions.
PLCs are far more dependable and troubleshooting is lot easier. Relays' mechanical functionalities simply wear out with time. Furthermore, the wiring required to operate a relay system is far more complicated than that required to operate a PLC system. Due to additional labour costs, this may result in increased installation and upgrade charges.
The basic functions of both a relay and a PLC are the same: to control electro-mechanical equipment in the workplace. Simple operations, like as starting/stopping an electric motor after detecting an overload or malfunction, can be accomplished by both efficiently.
Electromagnetic Relays.
Latching Relays.
Electronic Relays.
Non-Latching Relays.
Reed Relays.
High-Voltage Relays.
Small Signal Relays.
Time Delay Relays.
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A
Abhishek Tiwari
4
plc ka work kon kon karta hai
N
NIROJ PALAI,EEE(2021) Vel Tech, Chennai
5
amazing
S
surjeet
5
this very useful for electrical engineering diploma student
D
Dharmesh
5
First of all Thank you Sir as well as LearnVern to provide me best course and improve my knowledge. I am mostly impressed your teaching style.student is easily understand which is beginner, like me.
Really sir, I enjoyed your lectures.
Once again Thank you sir.
M
Moazzem Hossain
5
First of all, I sincerely thank you a lot for lunching such a informative virtual course. I just started my journey with this course and found it immensely worthy and fruitful.
M
madhup yadav
4
I saw small amount of mistake in video sir you should write v=24 watts
That is volt please because your video is awesome
A
ANIKET
5
Good for instrumentation and control engineering and electronics branch students
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